1. Machine Application: Automotive Back Glass Double Curvature Glass Tempering Furnace, or called Mould Bent Glass Tempering Machine is a special plant used to produce the bent tempered glass with multi curvature, which mainly used in the fields of rear doors and side doors of automotives (the side door also is multi curvature), trucks, furniture, etc. Our customer produced the side doors for BMW, Audi, Toyota, Honda, Hyundai, Peugeot, etc.